Film removing device

Abstract

The utility model relates to a film removing device which comprises a box body, a filter screen, a conveying assembly and a spiral conveying mechanism, the box body comprises an inner groove, an outer groove and a water falling groove, the box body is provided with a feeding port and a discharging port which are communicated with the inner groove, the inner groove is used for containing a solution, the solution in the inner groove can overflow to the outer groove, the bottom of the outer groove is an inclined face, and the water falling groove is located below the outer groove; the bottom of the box body is provided with a blanking port, the filter screen is arranged at the bottom of the outer groove and enables the outer groove to be communicated with the water falling groove, the transmission assembly is arranged in the inner groove and used for driving battery pieces entering the inner groove from the feeding port to move towards the discharging port and moving the battery pieces out of the inner groove through the discharging port, and the spiral conveying mechanism comprises a spiral auger and a motor. And the spiral auger is rotationally connected with the box body and is used for pushing film residues generated by film removal of the battery piece to the blanking opening under the driving of the motor. According to the film removing device, the requirement for collecting film residues can be met, the failure rate of the device is reduced, and the utilization rate of the device is increased.

Description

Technical Field

[0001] The present application relates to the technical field of solar cell manufacturing devices, and in particular to a film removal device. Background Art

[0002] The main production process of heterojunction solar cells involves initial polishing, gettering, texturing, CVD, PVD, patterning and metallization. De-filming is a metallization process that involves corroding and removing the masking glue from the surface of the cell.

[0003] In the related art, the film removal device uses a chain to drive a brush to collect the film residue that falls into the filter. Although this method can collect the film residue that falls into the filter, the chain will be damaged by wear and corrosion after long-term use, resulting in a high failure rate of the device. In addition, the brush and the filter wear quickly due to contact, and the service life is short. It often needs to be replaced, which affects the utilization rate of the device. Summary of the invention

[0004] Based on this, a film removal device is provided to solve the technical problem of how to meet the needs of film slag collection while reducing the device failure rate and improving the device utilization rate.

[0005] In one aspect, the present application provides a film removal device, comprising:

[0006] A box body, the box body comprises an inner tank, an outer tank and a drain trough, the box body is provided with a feed inlet and a discharge port connected to the inner tank, the inner tank is used to hold a solution, and the solution in the inner tank can overflow to the outer tank, the drain trough is located below the outer tank, and a discharge port is provided at the bottom of the box body;

[0007] A filter screen is arranged at the bottom of the outer trough and connects the outer trough with the downspout. The bottom of the outer trough is an inclined surface, so that the filter screen is arranged at an inclination.

[0008] A transmission component, the transmission component is arranged in the inner tank and is used to drive the battery cells entering the inner tank from the feed inlet to move toward the discharge outlet and move the battery cells out of the inner tank through the discharge outlet;

[0009] A screw conveying mechanism, wherein the screw conveying mechanism comprises a screw auger and a motor, wherein the screw auger is rotatably connected to the box body and is used to push the film residue generated by the film removal of the battery cell to the drop port under the drive of the motor.

[0010] In one embodiment, the filter screen has an inclination angle of 25° to 50°.

[0011] In one of the embodiments, a receiving groove is formed at the bottom of the box body, the spiral auger is rotatably disposed in the receiving groove, and the cross-section of the groove wall of the receiving groove is U-shaped.

[0012] In one embodiment, the outer grooves are provided on both sides of the inner groove, wherein the bottom of the outer groove on one side is connected to the top of one side of the groove wall of the receiving groove, and the bottom of the outer groove on the other side is connected to the top of the other side of the groove wall of the receiving groove.

[0013] In one embodiment, the two outer grooves are symmetrically arranged with respect to the inner groove, and the spiral auger is located in the center directly below the inner groove.

[0014] In one embodiment, the bottom wall of the receiving groove at least partially protrudes from the bottom surface of the box body.

[0015] In one of the embodiments, the film removal device further includes a storage tank, which is disposed below the material discharge port and has a film residue discharge port.

[0016] In one embodiment, a water collection port is provided at the bottom of the gutter; and / or a transparent observation window is provided on the side wall of the box body for an operator to observe and / or maintain the filter, and the transparent observation window corresponds to the gutter.

[0017] In one embodiment, the transmission component includes an upper roller and a lower roller that are relatively arranged, and a transmission channel for the movement of the battery cell is formed between the upper roller and the lower roller. The height of the transmission channel in the box is the same as the height of the feed port and the discharge port.

[0018] In one embodiment, assembly grooves are provided on both side walls of the inner groove, and the rotating shafts at both ends of the upper roller and the lower roller can be rotatably assembled in the assembly grooves; and / or, multiple groups of the upper rollers and multiple groups of the lower rollers are arranged at intervals along the direction of transmitting the battery cells; the box body is provided with a transmission shaft, which is rotatably connected to the box body, and the transmission shaft is used to drive the upper roller and / or the lower roller to rotate, so that the upper roller and the lower roller drive the battery cells between them to move.

[0019] In the above-mentioned film removal device, since the bottom of the outer tank is an inclined surface and the filter screen is arranged at the bottom of the outer tank, the film residue filtered by the filter screen will slide down to the spiral auger under the action of gravity, so as to reduce the wear of the filter screen and increase the service life of the filter screen, thereby reducing the frequency of replacing the filter screen, and then improving the device utilization rate. In addition, the spiral auger is driven by a motor to rotate to transport the film residue to the drop port so as to collect the film residue. Compared with the film removal device of the related art that uses a chain to drive a brush to collect the film residue that falls into the filter screen, the present application uses a spiral conveying mechanism to collect the film residue, which is more stable and reliable, not easy to be damaged, and increases the life of the device and reduces the failure rate of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the drawings required for use in the embodiments or the related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, drawings of other embodiments can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is a three-dimensional diagram of a film removal device according to one embodiment of the present application.

[0022] Figure 2 for Figure 1 A front view of the film removal device is shown.

[0023] Figure 3 for Figure 1 A right side view of the film removal device is shown.

[0024] Figure 4 for Figure 1 A top view of the film removal device is shown.

[0025] Figure 5 for Figure 4 The film removal device is shown in a cross-sectional view along line AA.

[0026] Figure 6 for Figure 4 A cross-sectional view of the film removal device along line BB is shown.

[0027] Description of reference numerals:

[0028] 100, battery cell; 10, housing; 10a, feed port; 10b, discharge port; 10c, discharge port; 11, inner tank; 12, outer tank; 12a, opening; 13, water trough; 13a, water collection port; 20, filter screen; 20a, mesh frame; 30, transmission component; 30a, gear; 31, upper roller; 32, lower roller; 33, transmission shaft; 34, first bevel gear; 35, second bevel gear; 40, spiral conveying mechanism; 41, spiral auger; 42, motor; 50, storage tank; 50a, film residue discharge port; 60, transparent observation window. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0030] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0031] The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions are for illustrative purposes only and do not represent the only implementations.

[0032] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0033] In the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0034] See also Figure 1 As shown, an embodiment of the present application provides a film removal device, which can be used to remove the film from a solar cell 100. The film removal device includes a box body 10, and the box body 10 includes an inner groove 11 and an outer groove 12 arranged side by side. Among them, the number of the outer grooves 12 can be 1 or 2. For example, only one side of the inner groove 11 is provided with the outer groove 12. For another example, the outer grooves 12 are provided on opposite sides of the inner groove 11.

[0035] In this embodiment, the inner tank 11 provides a place for the film removal of the battery cell 100. In other words, the film removal operation of the battery cell 100 is performed in the inner tank 11. It should be noted that the inner tank 11 is used to contain the solution, and the solution will overflow into the outer tank 12 during the process of continuously injecting the solution into the inner tank 11. Through this structural setting, the film residue generated when the film is removed from the battery cell 100 at the location of the inner tank 11 will float on the liquid surface of the solution and gradually overflow into the outer tank 12 with the solution.

[0036] Combination Figure 2 and Figure 3As shown, the box body 10 is provided with a feed port 10a and a discharge port 10b connected to the inner tank 11, so that the battery cell 100 can enter the inner tank 11 through the feed port 10a, and the battery cell 100 can be removed from the inner tank 11 through the discharge port 10b after the film is removed in the inner tank 11. Figure 1 , Figure 4 and Figure 6 As shown, the film removal device includes a transmission component 30, which is arranged in the inner tank 11 and is used to drive the battery cell 100 through the inner tank 11, so that the battery cell 100 entering from the feed port 10a moves toward the discharge port 10b and moves out of the inner tank 11 through the discharge port 10b.

[0037] Combination Figure 4 and Figure 5 As shown, the membrane removal device includes a filter screen 20. The housing 10 also includes a water trough 13 located below the outer tank 12, and the water trough 13 is connected to the outer tank 12 through the filter screen 20. The filter screen 20 is arranged at the bottom of the outer tank 12, so that after the solution in the inner tank 11 overflows to the outer tank 12 with the membrane residue, the filter screen 20 can intercept the membrane residue in the process of flowing through the filter screen 20 and entering the water trough 13, so as to have a filtering effect on the solution with the membrane residue.

[0038] In some embodiments, the filter screen 20 is installed at the bottom of the outer tank 12 through the screen frame 20a. Figure 5 As shown, the bottom of the outer tank 12 is provided with an opening 12a connected to the drain 13, so that the outer tank 12 and the drain 13 are connected through the opening 12a. The mesh frame 20a is installed at the opening 12a, and the filter 20 is connected to the mesh frame 20a, so that the filter 20 is stably installed in the opening 12a by using the mesh frame 20a.

[0039] The bottom of the box body 10 is provided with a discharge port 10c, and the discharge port 10c is used for the film residue to be discharged from the box body 10. In some embodiments, the film removal device further includes a storage tank 50 disposed below the discharge port 10c, so that the film residue will fall into the storage tank 50 after being discharged from the discharge port 10c.

[0040] The film removal device also includes a spiral conveying mechanism 40, which includes a spiral auger 41 and a motor 42. The spiral auger 41 is rotatably connected to the box body 10, and the spiral auger 41 is used to push the film residue to the drop port 10c under the drive of the motor 42, so that the film residue is discharged from the drop port 10c. In this embodiment, the spiral auger 41 rotates under the drive of the motor 42 to convey the film residue to the drop port 10c, thereby facilitating the film residue to fall into the storage tank 50 located below the drop port 10c. Compared with the related art that uses a chain to drive a brush to collect the film residue that falls into the filter screen 20, the present application uses a spiral conveying mechanism 40 to collect the film residue, which is more stable and reliable, and not easy to damage, thereby increasing the life of the device and reducing the failure rate of the device.

[0041] It should be noted that after the solution containing membrane residue overflowing from the inner tank 11 enters the outer tank 12, the solution will pass through the outer tank 12 through the filter screen 20 and flow into the gutter 13. Since the filter screen 20 is arranged between the outer tank 12 and the gutter 13, the filter screen 20 can play a filtering role, so that most of the solution passes through the filter screen 20 and flows into the gutter 13, and the membrane residue (paste-like) remains on the filter screen 20.

[0042] The bottom of the outer tank 12 is an inclined surface. In this way, the filter screen 20 installed at the bottom of the outer tank 12 will be inclined, so that the membrane residue intercepted by the filter screen 20 can slide down along the bottom of the outer tank 12 to the spiral auger 41 under its own gravity. Since the filter screen 20 is inclined, the solution with the membrane residue can be filtered by gravity when flowing through the filter screen 20, and the membrane residue will slide down along the inclined filter screen 20 to the spiral auger 41, without the need to use a structure such as a brush to remove the membrane residue from the filter screen 20, thereby reducing the wear on the filter screen 20 and increasing the service life of the filter screen 20, thereby reducing the frequency of replacing the filter screen 20, so as to improve the device utilization rate.

[0043] In some embodiments, the inclination angle of the filter screen 20 (i.e., the angle of the filter screen 20 relative to the horizontal plane) is 25° to 50°, so that the filter screen 20 can guide the film residue to slide down to the spiral auger 41, and can also avoid the inclination angle being too large and occupying a large space in the longitudinal direction of the box body 10. The inclination angle of the filter screen 20 can be specifically 25°, 30°, 35°, 40°, 45° or 50°.

[0044] The storage tank 50 is provided with a film residue discharge outlet 50a, through which the film residue can be discharged to other devices such as film residue spin-drying or drying devices for secondary processing of the film residue.

[0045] A receiving groove is formed at the bottom of the box body 10, and the spiral auger 41 is rotatably arranged in the receiving groove, and the cross-section of the groove wall of the receiving groove is U-shaped. In this embodiment, the receiving groove can provide a movement space for the spiral auger 41. At the same time, since the cross-section of the groove wall of the receiving groove is U-shaped, it can be well connected with the bottom of the outer groove 12, so that the film residue falls into the receiving groove and is pushed to the drop port 10c by the spiral auger 41. In the embodiment in which the outer grooves 12 are provided on both sides of the inner groove 11, the outer grooves 12 on both sides can be respectively arranged on both sides of the receiving groove. For example, the bottom of the outer groove 12 on one side is connected to the top of one side of the groove wall of the receiving groove, and the bottom of the outer groove 12 on the other side is connected to the top of the other side of the groove wall of the receiving groove, so that when the solution overflowing from the inner groove 11 to the outer grooves 12 on both sides flows into the downspout 13, the film residue will enter the receiving groove along the bottom of the outer grooves 12 on both sides.

[0046] The two outer grooves 12 are symmetrically arranged with respect to the inner groove 11, and the spiral auger 41 is located at the center directly below the inner groove 11, that is, the rotation axis of the spiral auger 41 is located on the symmetry plane of the two outer grooves 12. Since the two outer grooves 12 are symmetrically arranged with respect to the inner groove 11, and the spiral auger 41 is located at the center directly below the inner groove 11, when the spiral auger 41 collects the film residue from the two outer grooves 12, the efficiency of collecting the film residue in the inner grooves 11 on both sides tends to be consistent, thereby preventing the imbalance of the film residue collection efficiency on both sides. Therefore, this structural arrangement is conducive to improving the operational stability of the film removal device.

[0047] In some embodiments, the bottom wall of the receiving groove at least partially protrudes from the bottom surface of the box body 10. In this way, when the spiral auger 41 is assembled in the receiving groove, part of the structure of the spiral auger 41 is located below the bottom surface of the box body 10. Therefore, the space below the box body 11 is fully utilized to reduce the occupation of the internal space of the box body 10 by the spiral auger 41.

[0048] Combination Figure 3 and Figure 5 As shown, in some embodiments, a water collection port 13a is provided at the bottom of the gutter 13, and the solution collected in the gutter 13 can be discharged or recycled through the water collection port 13a. The transparent observation window 60 on the side wall of the box body 10 can be convenient for operators to observe the working condition of the filter 20, and can be used for operators to maintain the filter 20. The transparent observation window 60 and the box body 10 are openable and closable. For example, the transparent observation window 60 includes a sliding door provided on the box body 10, or the transparent observation window 60 includes a door window hinged to the box body 10. With this structural arrangement, when the filter 20 needs to be maintained or replaced, it is only necessary to open the transparent observation window 60, so that the operator can conveniently perform maintenance and replacement operations on the filter 20.

[0049] Combination Figure 1 , Figure 4 and Figure 5As shown, the transmission component 30 includes an upper roller 31 and a lower roller 32 that are arranged opposite to each other. A transmission channel for the battery cell 100 to move is formed between the upper roller 31 and the lower roller 32. The height of the transmission channel in the box body 10 is the same as the height of the feed port 10a and the discharge port 10b, so that the battery cell 100 can smoothly enter the transmission channel between the upper roller 31 and the lower roller 32 after entering the inner tank 11 from the feed port 10a. As the transmission component 30 drives the battery cell 100 to move in the inner tank 11, the battery cell 100 moves from the transmission channel to align with the discharge port 10b and moves out of the inner tank 11 from the discharge port 10b. It should be noted that in the process of transmitting the battery cell 100, the upper roller 31 abuts against the upper surface of the battery cell 100, and the lower roller 32 abuts against the lower surface of the battery cell 100. In this way, the rotation of the upper roller 31 and the lower roller 32 can generate traction on the battery cell 100 therebetween, so as to transfer the battery cell 100 from the feed port 10a to the discharge port 10b.

[0050] The upper roller 31 and the lower roller 32 may be rotatably connected to the two side walls of the inner tank 11, thereby ensuring the stability of the transmission of the battery cell 100. In some embodiments, the two side walls of the inner tank 11 are provided with assembly grooves, and the rotating shafts at both ends of the upper roller 31 and the lower roller 32 are rotatably assembled in the assembly grooves. With this structure, the installation and removal of the upper roller 31 and the lower roller 32 can be facilitated. Bearings may be provided between the rotating shafts at both ends of the upper roller 31 and the lower roller 32 and the box body 10 to improve the smoothness of rotation by using the bearings.

[0051] There are multiple groups of upper rollers 31 and lower rollers 32. Multiple groups of upper rollers 31 are arranged at intervals along the direction of transmitting the battery cells 100, and multiple groups of lower rollers 32 are arranged at intervals below the upper rollers 31 along the direction of transmitting the battery cells 100. In this way, multiple battery cells 100 can be transmitted synchronously, improving the film removal efficiency.

[0052] Continue to combine Figure 4 and Figure 5 As shown, the box 10 is provided with a transmission shaft 33, and the transmission shaft 33 is rotatably connected to the box 10. The transmission shaft 33 is used to drive the upper roller 31 and / or the lower roller 32 to rotate, so that the upper roller 31 and the lower roller 32 drive the battery sheet 100 therebetween to move. The power source of the transmission shaft 33 includes but is not limited to a servo motor or a rotary motor 42, as long as it can drive the transmission shaft 33 to rotate.

[0053] A plurality of first bevel gears 34 may be provided on the transmission shaft 33, and correspondingly, a second bevel gear 35 matching the first bevel gear 34 may be provided at the end of the rotating shaft of the upper roller 31 or the lower roller 32. Thus, when the transmission shaft 33 rotates, the plurality of first bevel gears 34 mesh with the corresponding plurality of second bevel gears 35 to rotate, so that the plurality of correspondingly provided upper rollers 31 and lower rollers 32 rotate together. This structural arrangement can keep the rotation of all upper rollers 31 and all lower rollers 32 on the box 10 in a coordinated manner, thereby facilitating the transmission stability of the battery cell 100.

[0054] In some embodiments, the transmission assembly 30 further includes a gear 30a, and the end of the upper roller 31 and the end of the lower roller 32 are meshed through the gear 30a to maintain synchronous reverse rotation. Synchronous reverse rotation means that the upper roller 31 and the lower roller 32 rotate at the same speed and in opposite directions. Therefore, during the transmission of the battery cell 100, the upper surface and the lower surface of the battery cell 100 maintain good synchronization under the friction transmission of the corresponding upper roller 31 and the lower roller 32, so as to enhance the stability of the transmission process of the battery cell 100.

[0055] Furthermore, the gear 30a at the end of the lower roller 32 is coaxially arranged with the second bevel gear 35, and can be a double gear, so that when the first bevel gear 34 drives the second bevel gear 35 to rotate, the gear 30a at the end of the lower roller 32 will also rotate with the second bevel gear 35, so that the transmission shaft 33 drives the lower roller 32 to rotate. Therefore, in the embodiment where the upper roller 31 and the lower roller 32 adopt the gear 30a meshing, the transmission shaft 33 drives the upper roller 31 and the lower roller 32 to rotate together, so that the upper roller 31 and the lower roller 32 drive the battery sheet 100 therebetween to move.

[0056] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0057] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the inventive concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A film removal device, characterized in that: include: A box body (10), the box body (10) comprising an inner tank (11), an outer tank (12) and a drain chute (13), the box body (10) being provided with a feed inlet (10a) and a discharge outlet (10b) connected to the inner tank (11), the inner tank (11) being used to contain a solution, and the solution in the inner tank (11) can overflow into the outer tank (12), the drain chute (13) being located below the outer tank (12), and a drain outlet (10c) being provided at the bottom of the box body (10); a filter screen (20), the filter screen (20) being arranged at the bottom of the outer trough (12) and connecting the outer trough (12) with the downspout (13); the bottom of the outer trough (12) being an inclined surface, so that the filter screen (20) is arranged at an inclination; a transmission component (30), the transmission component (30) being arranged in the inner tank (11) and being used to drive the battery cell (100) entering the inner tank (11) from the feed port (10a) to move toward the discharge port (10b) and to move the battery cell (100) out of the inner tank (11) through the discharge port (10b); A screw conveying mechanism (40), the screw conveying mechanism (40) comprising a screw auger (41) and a motor (42), the screw auger (41) being rotatably connected to the box body (10) and used to push film residues generated by film removal of the battery cell (100) to the drop port (10c) under the drive of the motor (42).

2. The film removal device according to claim 1, characterized in that: The inclination angle of the filter screen (20) is 25° to 50°.

3. The film removal device according to claim 1, characterized in that: A receiving groove is formed at the bottom of the box body (10), and the spiral auger (41) is rotatably arranged in the receiving groove. The cross section of the groove wall of the receiving groove is U-shaped.

4. The film removal device according to claim 3, characterized in that: The outer grooves (12) are provided on both sides of the inner groove (11), wherein the bottom of the outer groove (12) on one side is connected to the top of one side of the groove wall of the receiving groove, and the bottom of the outer groove (12) on the other side is connected to the top of the other side of the groove wall of the receiving groove.

5. The film removal device according to claim 4, characterized in that: The two outer grooves (12) are symmetrically arranged with respect to the inner groove (11), and the spiral auger (41) is located at a central position directly below the inner groove (11).

6. The film removal device according to claim 3, characterized in that: The bottom wall of the receiving groove at least partially protrudes from the bottom surface of the box body (10).

7. The film removal device according to claim 1, characterized in that: The film removal device further comprises a storage tank (50), wherein the storage tank (50) is arranged below the material discharge port (10c), and the storage tank (50) is provided with a film residue discharge port (50a).

8. The film removal device according to claim 1, characterized in that: The bottom of the gutter (13) is provided with a water collection port (13a); and / or the side wall of the box body (10) is provided with a transparent observation window (60) for an operator to observe and / or maintain the filter screen (20).

9. The film removal device according to claim 1, characterized in that: The transmission assembly (30) comprises an upper roller (31) and a lower roller (32) arranged opposite to each other, wherein a transmission channel for the battery sheet (100) to move is formed between the upper roller (31) and the lower roller (32), and the height of the transmission channel in the box body (10) is the same as the height of the feed port (10a) and the discharge port (10b).

10. The film removal device according to claim 9, characterized in that: The two side walls of the inner groove (11) are provided with assembly grooves, and the rotating shafts at both ends of the upper roller (31) and the lower roller (32) are rotatably assembled in the assembly grooves; And / or, a plurality of groups of the upper rollers (31) and a plurality of groups of the lower rollers (32) are arranged at intervals along the direction of transmitting the battery sheet (100); the box body (10) is provided with a transmission shaft (33), the transmission shaft (33) is rotatably connected to the box body (10), and the transmission shaft (33) is used to drive the upper rollers (31) and / or the lower rollers (32) to rotate, so that the upper rollers (31) and the lower rollers (32) drive the battery sheet (100) therebetween to move.

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